Home / 628,759.10-943,138.65-202,294.10

Finding the Fourth Proportional to 628,759.10, 943,138.65 and 202,294.10

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Solution

The fourth proportional to 628,759.10, 943,138.65 and 202,294.10 is: 303,441.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    628,759.10 : 943,138.65 = 202,294.10 : x
  2. Step 2: Convert to fraction form
    628,759.10/943,138.65 = 202,294.10/x
  3. Step 3: Cross multiply
    628,759.10x = 943,138.65 × 202,294.10
  4. Step 4: Simplify right side
    628,759.10x = 190,791,384,376.97
  5. Step 5: Solve for x
    x = 190,791,384,376.97/628,759.10
  6. Step 6: Final answer
    x = 303,441.15

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.